Optical lens assembly with dual molded lens element and electronic device including same assembly

ABSTRACT

An optical lens assembly includes at least one lens element, which is a dual molded lens element. The dual molded lens element includes a light transmitting portion and a light absorbing portion. The light absorbing portion is annular and surrounds a central axis, wherein a plastic material and a color of the light absorbing portion are different from a plastic material and a color of the light transmitting portion, the dual molded lens element is made by an injection molding method and formed integrally, the light absorbing portion includes a plurality of second inner strip-shaped structures, the second inner strip-shaped structures are regularly arranged along a circumferential direction of the central axis, and the second inner strip-shaped structures are disposed correspondingly to and connected to a plurality of first inner strip-shaped structures.

RELATED APPLICATIONS

The present application is a continuation of the application Ser. No.16/152,583, filed on Oct. 5, 2018, which is a continuation of theapplication Ser. No. 15/488,768, filed on Apr. 17, 2017, U.S. Pat. No.10,126,529 issued on Nov. 13, 2018, and claims priority to Taiwanapplication serial number 105141458, filed on Dec. 14, 2016, the entirecontents of which are hereby incorporated herein by reference.

BACKGROUND Technical Field

The present disclosure relates to an optical lens assembly. Moreparticularly, the present disclosure relates to an optical lens assemblywhich is applicable to portable electronic devices.

Description of Related Art

Plastic lens elements are generally used to effectively reduce themanufacturing cost of optical lens assemblies. Conventional plastic lenselements are typically formed by the injection molding method and havesmooth and bright surfaces, which are featured with high reflectivity.Accordingly, when the stray light travels to the surfaces of the plasticlens element, the stray light reflected from the surfaces of the plasticlens element cannot be effectively attenuated.

FIG. 13 is a schematic view of a conventional optical lens assembly 90.In FIG. 13, a light L is totally reflected from a surface of a lenselement 91 with an incident angle greater than the critical anglethereof after entering into the conventional optical lens assembly 90,and then incident on the interface between the lens element 91 and aspacer 96. The light L continues to be multiple-reflected among thesurfaces of the lens element 91, spacers 96 and 97, and a barrel 99respectively, and becomes the stray light into an image surface. Hence,the stray light insufficiently attenuated in the conventional opticallens assembly 90 would cause problems such as ghost image on the imagesurface and affect the image quality.

Furthermore, conventional compact optical lens assemblies typicallyinclude a plurality of plastic lens elements so as to enhance the imagequality by the plastic lens elements featured with compact sizes,aspheric surfaces and sharp changing of curvatures. However, lenselements with compact sizes and aspheric surfaces usually result ininsufficient accuracy and alignment problems among lens elements.

Given the above, how to simultaneously meet the requirements ofsuppressing the stray light and accurate alignment with the optical axisof the compact optical lens assembly has become one of the importantsubjects, so that the image quality of the compact optical lensassemblies can be enhanced, and the requirements of high-end opticalsystems with camera functionalities can be satisfied.

SUMMARY

According to one aspect of the present disclosure, an optical lensassembly includes at least one lens element, which is a dual molded lenselement. The dual molded lens element includes a light transmittingportion and a light absorbing portion. The light transmitting portionincludes an effective optical section and a peripheral section. Theperipheral section surrounds the effective optical section and includesa plurality of first inner strip-shaped structures, wherein the firstinner strip-shaped structures are regularly arranged along acircumferential direction of a central axis of the dual molded lenselement. The light absorbing portion is located on at least one of anobject-side surface and an image-side surface of the dual molded lenselement, wherein the light absorbing portion is annular and surroundsthe central axis, a plastic material and a color of the light absorbingportion are different from a plastic material and a color of the lighttransmitting portion, the dual molded lens element is made by aninjection molding method and formed integrally, the light absorbingportion includes a plurality of second inner strip-shaped structures,the second inner strip-shaped structures are regularly arranged alongthe circumferential direction of the central axis, and the second innerstrip-shaped structures are disposed correspondingly to and connected tothe first inner strip-shaped structures. When a center-to-center spacingangle in the circumferential direction of the central axis between anytwo of the second inner strip-shaped structures which are adjacent toeach other is 82, the following condition is satisfied: 0 degrees<82<18degrees.

According to another aspect of the present disclosure, an electronicdevice includes a camera module, which includes the optical lensassembly according to the foregoing aspect and an image sensor, whereinthe image sensor is disposed on an image surface of the optical lensassembly.

According to another aspect of the present disclosure, an optical lensassembly includes at least one lens element, which is a dual molded lenselement. The dual molded lens element includes a light transmittingportion and a light absorbing portion. The light transmitting portionincludes an effective optical section and a peripheral section. Theperipheral section surrounds the effective optical section and includesa plurality of first inner ring-shaped structures, wherein the firstinner ring-shaped structures are coaxially arranged with respect to acentral axis of the dual molded lens element. The light absorbingportion is located on at least one of an object-side surface and animage-side surface of the dual molded lens element, wherein the lightabsorbing portion is annular and surrounds the central axis, a plasticmaterial and a color of the light absorbing portion are different from aplastic material and a color of the light transmitting portion, the dualmolded lens element is made by an injection molding method and formedintegrally, the light absorbing portion includes a plurality of secondinner ring-shaped structures, the second inner ring-shaped structuresare coaxially arranged with respect to the central axis, and the secondinner ring-shaped structures are disposed correspondingly to andconnected to the first inner ring-shaped structures. When an outerdiameter of one of the first inner ring-shaped structures having agreatest outer diameter is φt, a greatest inner diameter of the lightabsorbing portion is φab, the following condition is satisfied:1.0<φt/φab<2.5.

According to another aspect of the present disclosure, an electronicdevice includes a camera module, which includes the optical lensassembly according to the foregoing aspect and an image sensor, whereinthe image sensor is disposed on an image surface of the optical lensassembly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a schematic view of an optical lens assembly according to the1st embodiment of the present disclosure;

FIG. 1B is a schematic view of a dual molded lens element according tothe 1st embodiment;

FIG. 1C is a cross-sectional view along line 1C-1C of FIG. 1B,

FIG. 1D is a plane view of a light transmitting portion according to the1st embodiment;

FIG. 1E is a plane view of a light absorbing portion according to the1st embodiment;

FIG. 1F is a schematic view of a first step of a manufacturing method ofthe dual molded lens element according to the 1st embodiment;

FIG. 1G is a schematic view of a second step of the manufacturing methodof the dual molded lens element according to the 1st embodiment;

FIG. 2A is a schematic view of an optical lens assembly according to the2nd embodiment of the present disclosure;

FIG. 2B is a schematic view of a dual molded lens element according tothe 2nd embodiment;

FIG. 2C is a cross-sectional view along line 2C-2C of FIG. 2B;

FIG. 2D is a plane view of a light transmitting portion according to the2nd embodiment;

FIG. 2E is a plane view of a light absorbing portion according to the2nd embodiment;

FIG. 3A is a schematic view of an optical lens assembly according to the3rd embodiment of the present disclosure;

FIG. 3B is a schematic view of a dual molded lens element according tothe 3rd embodiment;

FIG. 3C is a cross-sectional view along line 3C-3C of FIG. 3B;

FIG. 3D is a plane view of a light transmitting portion according to the3rd embodiment;

FIG. 3E is a plane view of a light absorbing portion according to the3rd embodiment;

FIG. 4A is a schematic view of an optical lens assembly according to the4th embodiment of the present disclosure;

FIG. 4B is a schematic view of a dual molded lens element according tothe 4th embodiment;

FIG. 4C is a schematic view of a light transmitting portion according tothe 4th embodiment;

FIG. 4D is a schematic view of a light absorbing portion according tothe 4th embodiment;

FIG. 5A is a schematic view of an optical lens assembly according to the5th embodiment of the present disclosure;

FIG. 5B is a schematic view of a dual molded lens element according tothe 5th embodiment;

FIG. 5C is a schematic view of a light transmitting portion according tothe 5th embodiment;

FIG. 5D is a schematic view of a light absorbing portion according tothe 5th embodiment;

FIG. 6A is a schematic view of an optical lens assembly according to the6th embodiment of the present disclosure;

FIG. 6B is a schematic view of a dual molded lens element according tothe 6th embodiment;

FIG. 6C is a plane view of a light absorbing portion according to the6th embodiment;

FIG. 6D is a plane view of a light transmitting portion according to the6th embodiment;

FIG. 7A is a schematic view of an optical lens assembly according to the7th embodiment of the present disclosure;

FIG. 7B is a schematic view of a dual molded lens element according tothe 7th embodiment;

FIG. 7C is a plane view of a light absorbing portion according to the7th embodiment;

FIG. 7D is a plane view of a light transmitting portion according to the7th embodiment;

FIG. 8A is a schematic view of an optical lens assembly according to the8th embodiment of the present disclosure;

FIG. 8B is a schematic view of a dual molded lens element according tothe 8th embodiment;

FIG. 8C is a plane view of a light absorbing portion according to the8th embodiment;

FIG. 8D is a plane view of a light transmitting portion according to the8th embodiment;

FIG. 9A is a schematic view of an optical lens assembly according to the9th embodiment of the present disclosure;

FIG. 9B is a schematic view of a dual molded lens element according tothe 9th embodiment;

FIG. 9C is a plane view of a light absorbing portion according to the9th embodiment;

FIG. 9D is a plane view of a light transmitting portion according to the9th embodiment;

FIG. 10A shows a schematic view of an electronic device according to the10th embodiment of the present disclosure;

FIG. 10B shows another schematic view of the electronic device accordingto the 10th embodiment;

FIG. 10C shows a block diagram of the electronic device according to the10th embodiment;

FIG. 11 shows an electronic device according to the 11th embodiment ofthe present disclosure;

FIG. 12 shows an electronic device according to the 12th embodiment ofthe present disclosure; and

FIG. 13 is a schematic view of a conventional optical lens assembly.

DETAILED DESCRIPTION 1st Embodiment

FIG. 1A is a schematic view of an optical lens assembly 100 according tothe 1st embodiment of the present disclosure. In FIG. 1A, the opticallens assembly 100 includes a dual molded lens element 190, wherein thedual molded lens element 190 includes a light transmitting portion 110and a light absorbing portion 120.

FIG. 1B is a schematic view of the dual molded lens element 190according to the 1st embodiment, and FIG. 1C is a cross-sectional viewalong line 1C-1C of FIG. 1B. In FIG. 1A to FIG. 1C, the lighttransmitting portion 110 includes an effective optical section 113 and aperipheral section 114. The peripheral section 114 surrounds theeffective optical section 113, wherein an incident light passes throughthe effective optical section 113 and forms an image on an image surface108. The effective optical section 113 can include a planar surface oran aspheric surface with any curvature, wherein it would affect imagingproperties by blocking the effective optical section 113.

The light absorbing portion 120 is located on at least one of anobject-side surface 170 and an image-side surface 180 of the dual moldedlens element 190 (the light absorbing portion 120 is located on theobject-side surface 170 in the 1st embodiment), wherein the object-sidesurface 170 is a surface of the dual molded lens element 190 facing animaged object (not shown herein), and the image-side surface 180 is asurface of the dual molded lens element 190 facing the image surface108. The light absorbing portion 120 is annular and surrounds a centralaxis of the dual molded lens element 190. A plastic material and a colorof the light absorbing portion 120 are different from a plastic materialand a color of the light transmitting portion 110. The dual molded lenselement 190 is made by an injection molding method and formedintegrally, wherein the dual molded lens element 190 including the lighttransmitting portion 110 and light absorbing portion 120 can be made bya dual-shot injection molding method or a dual-shot molding method.Regarding the dual molded lens element 190 in the 1st embodiment, theplastic material of the light absorbing portion 120 has the feature ofabsorbing visible light, and the color of the light absorbing portion120 is black. The plastic material of the light transmitting portion 110has the feature of being transmitted by visible light, and the color ofthe light transmitting portion 110 is transparent and colorless. Hence,the plastic material and the color of the light absorbing portion 120are different from the plastic material and the color of the lighttransmitting portion 110. In other embodiments (not shown herein), alight absorbing portion can be located on an image-side surface of adual molded lens element, or both of an object-side surface and theimage-side surface of the dual molded lens element.

FIG. 1D is a plane view of the light transmitting portion 110 accordingto the 1st embodiment, and FIG. 1E is a plane view of the lightabsorbing portion 120 according to the 1st embodiment. In FIG. 1B toFIG. 1E, the peripheral section 114 includes a plurality of first innerstrip-shaped structures 115, wherein the first inner strip-shapedstructures 115 are regularly arranged along a circumferential directionof the central axis of the dual molded lens element 190. The lightabsorbing portion 120 includes a plurality of second inner strip-shapedstructures 125, wherein the second inner strip-shaped structures 125 areregularly arranged along the circumferential direction of the centralaxis, and the second inner strip-shaped structures 125 are disposedcorrespondingly to and connected to the first inner strip-shapedstructures 115. Furthermore, one structure of the first innerstrip-shaped structures 115 and the second inner strip-shaped structures125 can be a strip-shaped structure of a continuous protrusion, which isa pre-arranged strip, such as a protrusion strip, a wedge strip and soon, or can be a strip-shaped structure including a plurality ofprotrusion structures and a plurality of spacing structures, which arearranged as a strip shape.

In FIG. 1E, when a center-to-center spacing angle in the circumferentialdirection of the central axis between any two of the second innerstrip-shaped structures 125 which are adjacent to each other is 82, thefollowing condition is satisfied: 0 degrees<θ2<18 degrees. Therefore, itis favorable for reducing the stray light reflection in the optical lensassembly 100 and ensuring the dimensional accuracy of the opticalelements (such as the dual molded lens element 190). Preferably, thefollowing condition can be satisfied: 0 degrees<θ2<10 degrees.

Furthermore, in FIG. 1A, the optical lens assembly 100 includes lenselements 101, 102, 103, the dual molded lens element 190, a lens element104 and the image surface 108 in order from an object side to an imageside. The optical lens assembly 100 has a total of five lens elements(101, 102, 103, 190, 104), wherein the lens elements 101, 102, 103, thedual molded lens element 190 and the lens element 104 are disposed alongan optical axis (i.e. the central axis of the dual molded lens element190) in a plastic barrel 109. In other embodiments (not shown herein),the optical lens assembly can have a total of four, six, seven or morelens elements.

In FIG. 1A to FIG. 1C, a light L is totally reflected from theimage-side surface 180 of the lens element 190 with an incident anglegreater than the critical angle thereof after entering into the opticallens assembly 100, and then incident on the interface between the firstinner strip-shaped structures 115 and the second inner strip-shapedstructures 125. While the light L continues to be reflected between thefirst inner strip-shaped structures 115 and the second innerstrip-shaped structures 125 being both fine structures, the light L isabsorbed by the second inner strip-shaped structures 125, and thestrength of the light L is attenuated. Therefore, it is favorable foreffectively reducing the stray light incident into the image surface 108and maintaining the image quality of the optical lens assembly 100.

In detail, FIG. 1F is a schematic view of a first step of amanufacturing method of the dual molded lens element 190 according tothe 1st embodiment, and FIG. 1G is a schematic view of a second step ofthe manufacturing method of the dual molded lens element 190 accordingto the 1st embodiment. In FIG. 1F and FIG. 1G, the dual molded lenselement 190 can be made by a dual-shot injection molding method.Therefore, it is favorable for ensuring the dimensional accuracy of theoptical element, such as the dual molded lens element 190, and reducingthe assembling tolerance of the optical lens assembly 100.

In the first step of the manufacturing method of the dual molded lenselement 190, the light absorbing portion 120 is formed in a mold cavityamong movable molds 75, 76 and a first fixed mold 71 in an injectionmolding process. Next in the second step of the manufacturing method ofthe dual molded lens element 190, the movable molds 75 and 76 are movedtowards second fixed molds 73 and 74 to form another mold cavity whilethe light absorbing portion 120 being formed is moved together into theanother mold cavity, and the light transmitting portion 110 is formed inanother injection molding process. Accordingly, the dual molded lenselement 190 having the light transmitting portion 110 and the lightabsorbing portion 120 with different plastic materials and colors ismade and formed integrally by the dual-shot injection molding method.Furthermore, regarding the mold of the dual molded lens element 190 inthe 1st embodiment, there is a horizontal parting surface PL1 betweenthe movable mold 75 and the second fixed mold 73, wherein the horizontalparting surface PL1 is orthogonal to the optical axis and acts as a mainparting surface of the mold of the dual molded lens element 190. Inaddition, there are a vertical parting surface PL2 between the secondfixed molds 73 and 74, and a vertical parting surface PL3 between themovable molds 75 and 76, wherein the vertical parting surfaces PL2 andPL3 are both orthogonal to the horizontal parting surface PL1. Thearrangements of the horizontal parting surface PL1, the vertical partingsurfaces PL2 and PL3 are beneficial to increase the dimensional accuracyof the dual molded lens element 190. In other embodiments (not shownherein), a light transmitting portion can be made first, and a lightabsorbing portion can be made next.

In FIG. 1D and FIG. 1E, the peripheral section 114 of the lighttransmitting portion 110 further includes an outer annular surface 119.Each of the first inner strip-shaped structures 115 can be disposed in adirection from the central axis towards the outer annular surface 119 ofthe peripheral section 114. It can also be said that each of the firstinner strip-shaped structures 115 can be disposed in a direction fromthe outer annular surface 119 towards the central axis, and the firstinner strip-shaped structures 115 can be arranged outwards from thecentral axis towards the outer annular surface 119 as a radial pattern.The light absorbing portion 120 further includes an outer annularsurface 129. Each of the second inner strip-shaped structures 125 can bedisposed in a direction from the central axis towards the outer annularsurface 129 of the light absorbing portion 120. It can also be said thateach of the second inner strip-shaped structures 125 can be disposed ina direction from the outer annular surface 129 towards the central axis,and the second inner strip-shaped structures 125 can be arrangedoutwards from the central axis towards the outer annular surface 129 asa radial pattern. Therefore, it is favorable for maintaining thedenseness and the machining quality of the first inner strip-shapedstructures 115 and the second inner strip-shaped structures 125.

Each of the second inner strip-shaped structures 125 can be a wedgestrip, which is a strip structure with a wider bottom and a narrowertop, being tapered from the bottom to the top. More specifically, across-sectional plane along the circumferential direction of the centralaxis of each of the second inner strip-shaped structures 125 isisosceles triangular in the 1st embodiment. Therefore, it is favorablefor further eliminating the stray light by the second inner strip-shapedstructures 125 being wedge strips, and improving the mold releasing soas to increase the manufacturing yield rate of the dual molded lenselement 190.

In FIG. 1C to FIG. 1E of the 1st embodiment, the dual molded lenselement 190 is made by the dual-shot injection molding method as theaforementioned, wherein the second inner strip-shaped structures 125 asa whole are corresponding to the first inner strip-shaped structures 115as a whole. Each of the second inner strip-shaped structures 125 is awedge strip, and each of the first inner strip-shaped structures 115 iscorrespondingly a wedge strip. The second inner strip-shaped structures125 have the same geometric structures and are regularly arranged alongthe circumferential direction of the central axis of the dual moldedlens element 190, and the first inner strip-shaped structures 115correspondingly have the same geometric structures and are regularlyarranged along the circumferential direction of the central axis,wherein the geometric structure of each of the first inner strip-shapedstructures 115 can be different from the geometric structure of each ofthe second inner strip-shaped structures 125. The center-to-centerspacing angle in the circumferential direction of the central axisbetween any two of the second inner strip-shaped structures 125 whichare adjacent to each other is θ2, and a center-to-center spacing anglein the circumferential direction of the central axis between any two ofthe first inner strip-shaped structures 115 which are adjacent to eachother is correspondingly θ1, wherein θ1=θ2. In other embodiments (notshown herein), the aspects regarding the first inner strip-shapedstructures being regularly arranged are not limited to the samestructures, the same spacing, or the same values of the parameter 81.The aspects regarding the second inner strip-shaped structures beingregularly arranged are not limited to the same structures, the samespacing, or the same values of the parameter θ2. In addition, the firstinner strip-shaped structures and the second inner strip-shapedstructures may be periodically arranged respectively.

In FIG. 1B, a flat surface 130 can be located between the outer annularsurface 119 of the peripheral section 114 and the outer annular surface129 of the light absorbing portion 120, wherein the flat surface 130surrounds and is orthogonal to the central axis, and the flat surface130 can be located on the peripheral section 114 or the light absorbingportion 120. For manufacturing more easily, the dual molded lens element190 may have a feature of the flat surface 130 resulted from the molddesign in the injection molding process. In the 1st embodiment, the flatsurface 130 is located on the peripheral section 114.

When a width of the flat surface 130 is w, the following condition canbe satisfied: 0.03 mm<w<0.52 mm. The parameter w can also be said as alength in a radial direction of the central axis of the flat surface130. Therefore, it is favorable for ensuring the dimensional stabilityof the dual molded lens element 190 in mass production by maintainingthe value of the parameter w in a specific range. Preferably, thefollowing condition can be satisfied: 0.05 mm<w<0.35 mm.

The effective optical section 113 of the light transmitting portion 110can include at least one aspheric surface. That is, at least one of tworegions of the effective optical section 113 respectively located on theobject-side surface 170 and the image-side surface 180 of the dualmolded lens element 190 can be an aspheric surface. Therefore, it isfavorable for eliminating optical aberrations, so that the dual moldedlens element 190 can be applicable to the high-end optical lens assembly100. In the 1st embodiment, the effective optical section 113 includestwo aspheric surfaces, which are respectively the region of theeffective optical section 113 located on the object-side surface 170 andthe region of the effective optical section 113 located on theimage-side surface 180 of the dual molded lens element 190.

The data of the aforementioned parameters of the optical lens assembly100 according to the 1st embodiment of the present disclosure are listedin the following Table 1, wherein the parameters are also shown as FIG.1B, FIG. 1D and FIG. 1E.

TABLE 1 1st Embodiment θ1 (degrees) 2 w (mm) 0.16 θ2 (degrees) 2

2nd Embodiment

FIG. 2A is a schematic view of an optical lens assembly 200 according tothe 2nd embodiment of the present disclosure. In FIG. 2A, the opticallens assembly 200 includes a dual molded lens element 290, wherein thedual molded lens element 290 includes a light transmitting portion 210and a light absorbing portion 220.

FIG. 2B is a schematic view of the dual molded lens element 290according to the 2nd embodiment, and FIG. 2C is a cross-sectional viewalong line 2C-2C of FIG. 2B. In FIG. 2A to FIG. 2C, the lighttransmitting portion 210 includes an effective optical section 213 and aperipheral section 214. The peripheral section 214 surrounds theeffective optical section 213, wherein an incident light passes throughthe effective optical section 213 and forms an image on an image surface208. The effective optical section 213 can include a planar surface oran aspheric surface with any curvature, wherein it would affect imagingproperties by blocking the effective optical section 213.

The light absorbing portion 220 is located on an object-side surface 270of the dual molded lens element 290, wherein the object-side surface 270is a surface of the dual molded lens element 290 facing an imaged object(not shown herein), and an image-side surface 280 is a surface of thedual molded lens element 290 facing the image surface 208. The lightabsorbing portion 220 is annular and surrounds a central axis of thedual molded lens element 290. A plastic material of the light absorbingportion 220 has the feature of absorbing visible light, and a color ofthe light absorbing portion 220 is black. A plastic material of thelight transmitting portion 210 has the feature of being transmitted byvisible light, and a color of the light transmitting portion 210 istransparent and colorless. Hence, the plastic material and the color ofthe light absorbing portion 220 are different from the plastic materialand the color of the light transmitting portion 210. The dual moldedlens element 290 is made by an injection molding method and formedintegrally.

FIG. 2D is a plane view of the light transmitting portion 210 accordingto the 2nd embodiment, and FIG. 2E is a plane view of the lightabsorbing portion 220 according to the 2nd embodiment. In FIG. 2B toFIG. 2E, the peripheral section 214 includes a plurality of first innerstrip-shaped structures 215, wherein the first inner strip-shapedstructures 215 are regularly arranged along a circumferential directionof the central axis of the dual molded lens element 290. The lightabsorbing portion 220 includes a plurality of second inner strip-shapedstructures 225, wherein the second inner strip-shaped structures 225 areregularly arranged along the circumferential direction of the centralaxis, and the second inner strip-shaped structures 225 are disposedcorrespondingly to and connected to the first inner strip-shapedstructures 215.

In detail, the dual molded lens element 290 is made by a dual-shotinjection molding method. The peripheral section 214 of the lighttransmitting portion 210 further includes an outer annular surface 219.Each of the first inner strip-shaped structures 215 is disposed in adirection from the central axis towards the outer annular surface 219 ofthe peripheral section 214. The light absorbing portion 220 furtherincludes an outer annular surface 229. Each of the second innerstrip-shaped structures 225 is disposed in a direction from the centralaxis towards the outer annular surface 229 of the light absorbingportion 220.

Each of the first inner strip-shaped structures 215 is a protrusionstrip. More specifically, a cross-sectional plane along thecircumferential direction of the central axis of each of the secondinner strip-shaped structures 225 is rectangular in the 2nd embodiment.Therefore, it is favorable for adding surface treatments on the firstinner strip-shaped structures 215.

In the 2nd embodiment, the dual molded lens element 290 is made by thedual-shot injection molding method, wherein the first inner strip-shapedstructures 215 as a whole are corresponding to the second innerstrip-shaped structures 225 as a whole. The first inner strip-shapedstructures 215 are protrusion strips, and a plurality of strip grooves(its reference numeral is omitted) located on the light absorbingportion 220 are corresponding to the first inner strip-shaped structures215, wherein each of the strip grooves is located between each two ofthe second inner strip-shaped structures 225 which are adjacent to eachother, and the second inner strip-shaped structures 225 arecorrespondingly protrusion strips. The first inner strip-shapedstructures 215 have the same geometric structures and are regularlyarranged along the circumferential direction of the central axis of thedual molded lens element 290, and the second inner strip-shapedstructures 225 correspondingly have the same geometric structures andare regularly arranged along the circumferential direction of thecentral axis, wherein the geometric structure of each of the first innerstrip-shaped structures 215 is different from the geometric structure ofeach of the second inner strip-shaped structures 225. A center-to-centerspacing angle in the circumferential direction of the central axisbetween any two of the first inner strip-shaped structures 215 which areadjacent to each other is θ1, and a center-to-center spacing angle inthe circumferential direction of the central axis between any two of thesecond inner strip-shaped structures 225 which are adjacent to eachother is correspondingly θ2, wherein θ1=θ2.

In FIG. 2A, the optical lens assembly 200 includes lens elements 201,202, 203, the dual molded lens element 290, a lens element 204 and theimage surface 208 in order from an object side to an image side. Theoptical lens assembly 200 has a total of five lens elements (201, 202,203, 290, 204), wherein the lens elements 201, 202, 203, the dual moldedlens element 290 and the lens element 204 are disposed along an opticalaxis (i.e. the central axis of the dual molded lens element 290) in aplastic barrel 209.

In FIG. 2A and FIG. 2B, a flat surface 230 is located between the outerannular surface 219 of the peripheral section 214 and the outer annularsurface 229 of the light absorbing portion 220, wherein the flat surface230 surrounds and is orthogonal to the central axis, and the flatsurface 230 is located on the peripheral section 214. The effectiveoptical section 213 includes two aspheric surfaces, which arerespectively a region of the effective optical section 213 located onthe object-side surface 270 and a region of the effective opticalsection 213 located on the image-side surface 280 of the dual moldedlens element 290.

The data of the parameters θ1, θ2 and w of the optical lens assembly 200according to the 2nd embodiment of the present disclosure are listed inthe following Table 2, wherein the parameters are also shown as FIG. 2B,FIG. 2D and FIG. 2E. The definitions of these parameters shown in Table2 are the same as those stated in the optical lens assembly 100 of the1st embodiment with corresponding values for the optical lens assembly200.

TABLE 2 2nd Embodiment θ1 (degrees) 2 w (mm) 0.16 θ2 (degrees) 2

3rd Embodiment

FIG. 3A is a schematic view of an optical lens assembly 300 according tothe 3rd embodiment of the present disclosure. In FIG. 3A, the opticallens assembly 300 includes a dual molded lens element 390, wherein thedual molded lens element 390 includes a light transmitting portion 310and a light absorbing portion 320.

FIG. 3B is a schematic view of the dual molded lens element 390according to the 3rd embodiment, and FIG. 3C is a cross-sectional viewalong line 3C-3C of FIG. 3B. In FIG. 3A to FIG. 3C, the lighttransmitting portion 310 includes an effective optical section 313 and aperipheral section 314. The peripheral section 314 surrounds theeffective optical section 313, wherein an incident light passes throughthe effective optical section 313 and forms an image on an image surface308. The effective optical section 313 can include a planar surface oran aspheric surface with any curvature, wherein it would affect imagingproperties by blocking the effective optical section 313.

The light absorbing portion 320 is located on an object-side surface 370of the dual molded lens element 390, wherein the object-side surface 370is a surface of the dual molded lens element 390 facing an imaged object(not shown herein), and an image-side surface 380 is a surface of thedual molded lens element 390 facing the image surface 308. The lightabsorbing portion 320 is annular and surrounds a central axis of thedual molded lens element 390. A plastic material of the light absorbingportion 320 has the feature of absorbing visible light, and a color ofthe light absorbing portion 320 is black. A plastic material of thelight transmitting portion 310 has the feature of being transmitted byvisible light, and a color of the light transmitting portion 310 istransparent and colorless. Hence, the plastic material and the color ofthe light absorbing portion 320 are different from the plastic materialand the color of the light transmitting portion 310. The dual moldedlens element 390 is made by an injection molding method and formedintegrally.

FIG. 3D is a plane view of the light transmitting portion 310 accordingto the 3rd embodiment, and FIG. 3E is a plane view of the lightabsorbing portion 320 according to the 3rd embodiment. In FIG. 3B toFIG. 3E, the peripheral section 314 includes a plurality of first innerstrip-shaped structures 315, wherein the first inner strip-shapedstructures 315 are regularly arranged along a circumferential directionof the central axis of the dual molded lens element 390. The lightabsorbing portion 320 includes a plurality of second inner strip-shapedstructures 325, wherein the second inner strip-shaped structures 325 areregularly arranged along the circumferential direction of the centralaxis, and the second inner strip-shaped structures 325 are disposedcorrespondingly to and connected to the first inner strip-shapedstructures 315.

In detail, the dual molded lens element 390 is made by a dual-shotinjection molding method. The peripheral section 314 of the lighttransmitting portion 310 further includes an outer annular surface 319.Each of the first inner strip-shaped structures 315 is disposed in adirection from the central axis towards the outer annular surface 319 ofthe peripheral section 314. The light absorbing portion 320 furtherincludes an outer annular surface 329. Each of the second innerstrip-shaped structures 325 is disposed in a direction from the centralaxis towards the outer annular surface 329 of the light absorbingportion 320. Each of the second inner strip-shaped structures 325 is awedge strip. More specifically, a cross-sectional plane along thecircumferential direction of the central axis of each of the secondinner strip-shaped structures 325 is isosceles triangular.

In the 3rd embodiment, the dual molded lens element 390 is made by thedual-shot injection molding method, wherein the second innerstrip-shaped structures 325 as a whole are corresponding to the firstinner strip-shaped structures 315 as a whole. Each of the second innerstrip-shaped structures 325 is a wedge strip, and each of the firstinner strip-shaped structures 315 is correspondingly a wedge strip. Thesecond inner strip-shaped structures 325 have the same geometricstructures and are regularly arranged along the circumferentialdirection of the central axis of the dual molded lens element 390, andthe first inner strip-shaped structures 315 correspondingly have thesame geometric structures and are regularly arranged along thecircumferential direction of the central axis, wherein the geometricstructure of each of the first inner strip-shaped structures 315 can bedifferent from the geometric structure of each of the second innerstrip-shaped structures 325. A center-to-center spacing angle in thecircumferential direction of the central axis between any two of thesecond inner strip-shaped structures 325 which are adjacent to eachother is θ2, and a center-to-center spacing angle in the circumferentialdirection of the central axis between any two of the first innerstrip-shaped structures 315 which are adjacent to each other iscorrespondingly θ1, wherein θ1=θ2.

In FIG. 3A, a number of lens elements of the optical lens assembly 300is at least two, wherein one of the lens elements is the dual moldedlens element 390. The optical lens assembly 300 includes lens elements301, 302, the dual molded lens element 390, lens elements 303, 304 andthe image surface 308 in order from an object side to an image side. Theoptical lens assembly 300 has a total of five lens elements (301, 302,390, 303, 304), wherein the lens elements 301, 302, the dual molded lenselement 390, the lens elements 303 and 304 are disposed along an opticalaxis (i.e. the central axis of the dual molded lens element 390) in aplastic barrel 309.

In FIG. 3A and FIG. 3B, a flat surface 330 is located between the outerannular surface 319 of the peripheral section 314 and the outer annularsurface 329 of the light absorbing portion 320, wherein the flat surface330 surrounds and is orthogonal to the central axis, and the flatsurface 330 is located on the light absorbing portion 320. The effectiveoptical section 313 includes two aspheric surfaces, which arerespectively a region of the effective optical section 313 located onthe object-side surface 370 and a region of the effective opticalsection 313 located on the image-side surface 380 of the dual moldedlens element 390.

A connecting structure 332 is located on at least one of the peripheralsection 314 and the light absorbing portion 320 of the dual molded lenselement 390. The connecting structure 332 includes a connecting surface342 and a receiving surface 352, wherein the connecting surface 342 isan annular conical surface with respect to the central axis, and thereceiving surface 352 is orthogonal to the central axis and farther fromthe central axis than the connecting surface 342 is from the centralaxis. The connecting structure 332 is connected to the lens element 302,which is adjacent to the dual molded lens element 390, and theconnecting structure 332 is for the dual molded lens element 390 and thelens element 302 both aligned with the central axis. Therefore, betteralignment accuracies of both the dual molded lens element 390 and thelens element 302 can be achieved by the dimensional accuracy of theconnecting structure 332. Furthermore, it is favorable for the dualmolded lens element 390 to be applicable to the high-end optical lensassembly 300, wherein the high-end specifications of the optical lensassembly 300 may include larger stop, high MTF (Modulation TransferFunction), more uniform refractive index of the lens element and etc.

When an angle between the connecting surface 342 and the receivingsurface 352 is a, the following condition is satisfied: 95 degrees<α<135degrees. Therefore, it is favorable for reducing assembling failure ofthe optical lens assembly 300 and maintaining better molding efficiencyof the dual molded lens element 390.

The connecting structure 332 is located on the light absorbing portion320. Therefore, it is favorable for effectively attenuating the straylight passed through the lens elements.

The data of the parameters θ1, θ2, w and a of the optical lens assembly300 according to the 3rd embodiment of the present disclosure are listedin the following Table 3, wherein the parameters are also shown as FIG.3B, FIG. 3D and FIG. 3E. The definitions of these parameters shown inTable 3 are the same as those stated in the optical lens assembly 100 ofthe 1st embodiment with corresponding values for the optical lensassembly 300.

TABLE 3 3rd Embodiment θ1 (degrees) 2 w (mm) 0.21 θ2 (degrees) 2 α(degrees) 110

4th Embodiment

FIG. 4A is a schematic view of an optical lens assembly 400 according tothe 4th embodiment of the present disclosure. In FIG. 4A, the opticallens assembly 400 includes a dual molded lens element 490, wherein thedual molded lens element 490 includes a light transmitting portion 410and a light absorbing portion 420.

FIG. 4B is a schematic view of the dual molded lens element 490according to the 4th embodiment. In FIG. 4A and FIG. 4B, the lighttransmitting portion 410 includes an effective optical section 413 and aperipheral section 414. The peripheral section 414 surrounds theeffective optical section 413, wherein an incident light passes throughthe effective optical section 413 and forms an image on an image surface408. The effective optical section 413 can include a planar surface oran aspheric surface with any curvature, wherein it would affect imagingproperties by blocking the effective optical section 413.

The light absorbing portion 420 is located on at least one of anobject-side surface 470 and an image-side surface 480 of the dual moldedlens element 490 (the light absorbing portion 420 is located on theobject-side surface 470 in the 4th embodiment), wherein the object-sidesurface 470 is a surface of the dual molded lens element 490 facing animaged object (not shown herein), and the image-side surface 480 is asurface of the dual molded lens element 490 facing the image surface408. The light absorbing portion 420 is annular and surrounds a centralaxis of the dual molded lens element 490. A plastic material and a colorof the light absorbing portion 420 are different from a plastic materialand a color of the light transmitting portion 410. The dual molded lenselement 490 is made by an injection molding method and formedintegrally, wherein the dual molded lens element 490 including the lighttransmitting portion 410 and light absorbing portion 420 can be made bya dual-shot injection molding method or a dual-shot molding method.Regarding the dual molded lens element 490 in the 4th embodiment, theplastic material of the light absorbing portion 420 has the feature ofabsorbing visible light, and the color of the light absorbing portion420 is black. The plastic material of the light transmitting portion 410has the feature of being transmitted by visible light, and the color ofthe light transmitting portion 410 is transparent and colorless. Hence,the plastic material and the color of the light absorbing portion 420are different from the plastic material and the color of the lighttransmitting portion 410. In other embodiments (not shown herein), alight absorbing portion can be located on an image-side surface of adual molded lens element, or both of an object-side surface and theimage-side surface of the dual molded lens element.

FIG. 4C is a schematic view of the light transmitting portion 410according to the 4th embodiment, and FIG. 4D is a schematic view of thelight absorbing portion 420 according to the 4th embodiment. In FIG. 4Bto FIG. 4D, the peripheral section 414 includes a plurality of firstinner ring-shaped structures 417, wherein the first inner ring-shapedstructures 417 are coaxially, or concentrically arranged with respect tothe central axis of the dual molded lens element 490. The lightabsorbing portion 420 includes a plurality of second inner ring-shapedstructures 427, wherein the second inner ring-shaped structures 427 arecoaxially, or concentrically arranged with respect to the central axis,and the second inner ring-shaped structures 427 are disposedcorrespondingly to and connected to the first inner ring-shapedstructures 417. Furthermore, one structure of the first innerring-shaped structures 417 and the second inner ring-shaped structures427 can be a ring-shaped structure of a continuous protrusion, which isa pre-arranged ring, or can be a ring-shaped structure including aplurality of protrusion structures and a plurality of spacingstructures, which are arranged as a ring shape.

In FIG. 4B, when an outer diameter of one of the first inner ring-shapedstructures 417 having a greatest outer diameter is φt, and a greatestinner diameter of the light absorbing portion 420 is Tab, the followingcondition is satisfied: 1.0<φt/φab<2.5. Therefore, it is favorable forreducing the reflected stray light in the optical lens assembly 400, andmaintaining the structural strength of the dual molded lens element 490with the compact size so as to achieve the better optical quality afteran injection molding process. Preferably, the following condition can besatisfied: 1.05<φt/φab<2.0.

In detail, in FIG. 4B to FIG. 4D, the dual molded lens element 490 canbe made by a dual-shot injection molding method. Therefore, it isfavorable for ensuring the dimensional accuracy of the optical element,such as the dual molded lens element 490, and reducing the assemblingtolerance of the optical lens assembly 400.

At least one annular groove 461 can be formed on the first innerring-shaped structures 417, wherein the annular groove 461 includes aplurality of stepped surfaces 491. At least one annular groove 462 canbe formed on the second inner ring-shaped structures 427, wherein theannular groove 462 includes a plurality of stepped surfaces 492.Therefore, the first inner ring-shaped structures 417 and the secondinner ring-shaped structures 427 can be achieved by an easier machiningprocess. The appearance stability of the micro structures thereof can bemaintained, so that the molding can meet the expected result of thedesign drawing.

A number of the stepped surfaces 491 of the annular groove 461 can begreater than or equal to 4, and smaller than or equal to 14, wherein thestepped surfaces 491 are the surfaces orthogonal to the central axis onthe annular groove 461 specifically. A number of the stepped surfaces492 of the annular groove 462 can be greater than or equal to 4, andsmaller than or equal to 14, wherein the stepped surfaces 492 are thesurfaces orthogonal to the central axis on the annular groove 462specifically. Therefore, the annular grooves 461 and 462 can have moreobvious stepped surfaces so as to ensure the effectiveness ofattenuating the stray light.

In the 4th embodiment, a number of the first inner ring-shapedstructures 417 is two, and a number of the annular groove 461 is two.The two annular grooves 461 are respectively formed on two sides of oneof the first inner ring-shaped structures 417, which is farther from anouter annular surface 419, wherein a number of the stepped surfaces 491of the annular groove 461 closer to the outer annular surface 419 is 7,and a number of the stepped surfaces 491 of the annular groove 461farther from the outer annular surface 419 is 3. A number of the secondinner ring-shaped structures 427 is two, and a number of the annulargroove 462 is two. The two annular grooves 462 are respectively formedon two sides of one of the second inner ring-shaped structures 427,which is closer to an outer annular surface 429, wherein a number of thestepped surfaces 492 of the annular groove 462 closer to the outerannular surface 429 is 7, and a number of the stepped surfaces 492 ofthe annular groove 462 farther from the outer annular surface 429 is 6.

In the 4th embodiment, the dual molded lens element 490 is made by thedual-shot injection molding method, wherein each structure of the firstinner ring-shaped structures 417 and the second inner ring-shapedstructures 427 is a ring-shaped structure of a continuous protrusion,which is a pre-arranged ring, and the first inner ring-shaped structures417 as a whole are corresponding to the second inner ring-shapedstructures 427 as a whole. The first inner ring-shaped structures 417are respectively corresponding to the annular grooves 462, and thesecond inner ring-shaped structures 427 are respectively correspondingto the annular grooves 461.

In FIG. 4A, a number of lens elements of the optical lens assembly 400is at least two, wherein one of the lens elements is the dual moldedlens element 490. The optical lens assembly 400 includes lens elements401, 402, the dual molded lens element 490, lens elements 403, 404 andthe image surface 408 in order from an object side to an image side. Theoptical lens assembly 400 has a total of five lens elements (401, 402,490, 403, 404), wherein the lens elements 401, 402, the dual molded lenselement 490, the lens elements 403 and 404 are disposed along an opticalaxis (i.e. the central axis of the dual molded lens element 490) in aplastic barrel 409. In other embodiments (not shown herein), the opticallens assembly can have a total of four, six, seven or more lenselements.

In FIG. 4A and FIG. 4B, a flat surface 430 is located between the outerannular surface 419 of the peripheral section 414 and the outer annularsurface 429 of the light absorbing portion 420, wherein the flat surface430 surrounds and is orthogonal to the central axis, and the flatsurface 430 is located on the light absorbing portion 420. A width ofthe flat surface 430 is w, and the parameter w can also be said as alength in a radial direction of the central axis of the flat surface430. The effective optical section 413 includes two aspheric surfaces,which are respectively a region of the effective optical section 413located on the object-side surface 470 and a region of the effectiveoptical section 413 located on the image-side surface 480 of the dualmolded lens element 490.

A connecting structure 432 can be located on at least one of theperipheral section 414 and the light absorbing portion 420 of the dualmolded lens element 490. The connecting structure 432 includes aconnecting surface 442 and a receiving surface 452, wherein theconnecting surface 442 is an annular conical surface with respect to thecentral axis, and the receiving surface 452 is orthogonal to the centralaxis and farther from the central axis than the connecting surface 442is from the central axis. The connecting structure 432 is connected tothe lens element 402, which is adjacent to the dual molded lens element490, and the connecting structure 432 is for the dual molded lenselement 490 and the lens element 402 both aligned with the central axis.Therefore, better alignment accuracies of both the dual molded lenselement 490 and the lens element 402 can be achieved by the dimensionalaccuracy of the connecting structure 432. Furthermore, it is favorablefor the dual molded lens element 490 to be applicable to the high-endoptical lens assembly 400, wherein the high-end specifications of theoptical lens assembly 400 may include larger stop, high MTF (ModulationTransfer Function), more uniform refractive index of the lens elementand etc.

When an angle between the connecting surface 442 and the receivingsurface 452 is a, the following condition can be satisfied: 95degrees<α<135 degrees. Therefore, it is favorable for reducingassembling failure of the optical lens assembly 400 and maintainingbetter molding efficiency of the dual molded lens element 490.

The connecting structure 432 can be located on the light absorbing toportion 420. Therefore, it is favorable for effectively attenuating thestray light passed through the lens elements.

The data of the aforementioned parameters of the optical lens assembly400 according to the 4th embodiment of the present disclosure are listedin the following Table 4, wherein the parameters are also shown as FIG.4B.

TABLE 4 4th Embodiment w (mm) 0.21 φab (mm) 2.9 α (degrees) 110 φt/φab1.23 φt (mm) 3.57

5th Embodiment

FIG. 5A is a schematic view of an optical lens assembly 500 according tothe 5th embodiment of the present disclosure. In FIG. 5A, the opticallens assembly 500 includes a dual molded lens element 590, wherein thedual molded lens element 590 includes a light transmitting portion 510and a light absorbing portion 520.

FIG. 5B is a schematic view of the dual molded lens element 590according to the 5th embodiment. In FIG. 5A and FIG. 5B, the lighttransmitting portion 510 includes an effective optical section 513 and aperipheral section 514. The peripheral section 514 surrounds theeffective optical section 513, wherein an incident light passes throughthe effective optical section 513 and forms an image on an image surface508. The effective optical section 513 can include a planar surface oran aspheric surface with any curvature, wherein it would affect imagingproperties by blocking the effective optical section 513.

The light absorbing portion 520 is located on an object-side surface 570of the dual molded lens element 590, wherein the object-side surface 570is a surface of the dual molded lens element 590 facing an imaged object(not shown herein), and an image-side surface 580 is a surface of thedual molded lens element 590 facing the image surface 508. The lightabsorbing portion 520 is annular and surrounds a central axis of thedual molded lens element 590. A plastic material of the light absorbingportion 520 has the feature of absorbing visible light, and a color ofthe light absorbing portion 520 is black. A plastic material of thelight transmitting portion 510 has the feature of being transmitted byvisible light, and a color of the light transmitting portion 510 istransparent and colorless. Hence, the plastic material and the color ofthe light absorbing portion 520 are different from the plastic materialand the color of the light transmitting portion 510. The dual moldedlens element 590 is made by an injection molding method and formedintegrally.

FIG. 5C is a schematic view of the light transmitting portion 510according to the 5th embodiment, and FIG. 5D is a schematic view of thelight absorbing portion 520 according to the 5th embodiment. In FIG. 5Bto FIG. 5D, the peripheral section 514 includes a plurality of firstinner ring-shaped structures 517, wherein the first inner ring-shapedstructures 517 are coaxially arranged with respect to the central axisof the dual molded lens element 590. The light absorbing portion 520includes a plurality of second inner ring-shaped structures 527, whereinthe second inner ring-shaped structures 527 are coaxially arranged withrespect to the central axis, and the second inner ring-shaped structures527 are disposed correspondingly to and connected to the first innerring-shaped structures 517.

In detail, the dual molded lens element 590 is made by a dual-shotinjection molding method, wherein each structure of the first innerring-shaped structures 517 and the second inner ring-shaped structures527 is a ring-shaped structure of a continuous protrusion, which is apre-arranged ring, and the first inner ring-shaped structures 517 as awhole are corresponding to the second inner ring-shaped structures 527as a whole. The first inner ring-shaped structures 517 are respectivelycorresponding to a plurality of annular grooves (its reference numeralis omitted) on the light absorbing portion 520, wherein each of theannular grooves can be located between two of the second innerring-shaped structures 527 which are adjacent to each other. The secondinner ring-shaped structures 527 are respectively corresponding to aplurality of annular grooves (its reference numeral is omitted) on thelight transmitting portion 510, wherein each of the annular grooves canbe located between two of the first inner ring-shaped structures 517which are adjacent to each other.

In FIG. 5A, the optical lens assembly 500 includes lens elements 501,502, the dual molded lens element 590, lens elements 503, 504 and theimage surface 508 in order from an object side to an image side. Theoptical lens assembly 500 has a total of five lens elements (501, 502,590, 503, 504), wherein the lens elements 501, 502, the dual molded lenselement 590, the lens elements 503 and 504 are disposed along an opticalaxis (i.e. the central axis of the dual molded lens element 590) in aplastic barrel 509.

In FIG. 5A and FIG. 5B, a flat surface 530 is located between an outerannular surface 519 of the peripheral section 514 and an outer annularsurface 529 of the light absorbing portion 520, wherein the flat surface530 surrounds and is orthogonal to the central axis, and the flatsurface 530 is located on the light absorbing portion 520. The effectiveoptical section 513 includes two aspheric surfaces, which arerespectively a region of the effective optical section 513 located onthe object-side surface 570 and a region of the effective opticalsection 513 located on the image-side surface 580 of the dual moldedlens element 590.

A connecting structure 532 is located on the light absorbing portion 520of the dual molded lens element 590. The connecting structure 532includes a connecting surface 542 and a receiving surface 552, whereinthe connecting surface 542 is an annular conical surface with respect tothe central axis, and the receiving surface 552 is orthogonal to thecentral axis and farther from the central axis than the connectingsurface 542 is from the central axis. The connecting structure 532 isconnected to the lens element 502, which is adjacent to the dual moldedlens element 590, and the connecting structure 532 is for the dualmolded lens element 590 and the lens element 502 both aligned with thecentral axis.

The data of the parameters w, α, φt, φab and φt/φab of the optical lensassembly 500 according to the 5th embodiment of the present disclosureare listed in the following Table 5, wherein the parameters are alsoshown as FIG. 5B. The definitions of these parameters shown in Table 5are the same as those stated in the optical lens assembly 400 of the 4thembodiment with corresponding values for the optical lens assembly 500.

TABLE 5 5th Embodiment w (mm) 0.21 φab (mm) 2.9 α (degrees) 110 φt/φab1.24 φt (mm) 3.59

6th Embodiment

FIG. 6A is a schematic view of an optical lens assembly 600 according tothe 6th embodiment of the present disclosure. In FIG. 6A, the opticallens assembly 600 includes a dual molded lens element 690, wherein thedual molded lens element 690 includes a light transmitting portion 610and a light absorbing portion 620.

FIG. 6B is a schematic view of the dual molded lens element 690according to the 6th embodiment. In FIG. 6A and FIG. 6B, the lighttransmitting portion 610 includes an effective optical section 613 and aperipheral section 614. The peripheral section 614 surrounds theeffective optical section 613, wherein an incident light passes throughthe effective optical section 613 and forms an image on an image surface608. The effective optical section 613 can include a planar surface oran aspheric surface with any curvature, wherein it would affect imagingproperties by blocking the effective optical section 613.

The light absorbing portion 620 is located on an object-side surface 670of the dual molded lens element 690, wherein the object-side surface 670is a surface of the dual molded lens element 690 facing an imaged object(not shown herein), and an image-side surface 680 is a surface of thedual molded lens element 690 facing the image surface 608. The lightabsorbing portion 620 is annular and surrounds a central axis of thedual molded lens element 690. A plastic material of the light absorbingportion 620 has the feature of absorbing visible light, and a color ofthe light absorbing portion 620 is black. A plastic material of thelight transmitting portion 610 has the feature of being transmitted byvisible light, and a color of the light transmitting portion 610 istransparent and colorless. Hence, the plastic material and the color ofthe light absorbing portion 620 are different from the plastic materialand the color of the light transmitting portion 610. The dual moldedlens element 690 is made by an injection molding method and formedintegrally.

FIG. 6C is a plane view of the light absorbing portion 620 according tothe 6th embodiment, and FIG. 6D is a plane view of the lighttransmitting portion 610 according to the 6th embodiment. In FIG. 6B toFIG. 6D, the peripheral section 614 includes a plurality of first innerstrip-shaped structures 615 and a plurality of first inner strip-shapedstructures 616, wherein the first inner strip-shaped structures 615 and616 are regularly arranged along a circumferential direction of thecentral axis of the dual molded lens element 690. The light absorbingportion 620 includes a plurality of second inner strip-shaped structures625 and a plurality of second inner strip-shaped structures 626, whereinthe second inner strip-shaped structures 625 and 626 are regularlyarranged along the circumferential direction of the central axis, andthe second inner strip-shaped structures 625 and 626 are disposedcorrespondingly to and connected to the first inner strip-shapedstructures 615 and 616.

In detail, the dual molded lens element 690 is made by a dual-shotinjection molding method. The peripheral section 614 of the lighttransmitting portion 610 further includes an outer annular surface 619.Each structure of the first inner strip-shaped structures 615 and 616 isdisposed in a direction from the central axis towards the outer annularsurface 619 of the peripheral section 614. The light absorbing portion620 further includes an outer annular surface 629. Each structure of thesecond inner strip-shaped structures 625 and 626 is disposed in adirection from the central axis towards the outer annular surface 629 ofthe light absorbing portion 620.

In FIG. 6B and FIG. 6C, each structure of the second inner strip-shapedstructures 625 and 626 includes a plurality of protrusion structures 672and a plurality of spacing structures 682. Specifically, the protrusionstructures 672 and the spacing structures 682 of each of the secondinner strip-shaped structures 625 are arranged as a strip shape, and theprotrusion structures 672 and the spacing structures 682 of each of thesecond inner strip-shaped structures 626 are arranged as a strip shape.Therefore, it is favorable for increasing the structural denseness ofthe second inner strip-shaped structures 625 and 626 being furtherarranged as two dimension so as to attenuate the stray light. Inaddition, the arrangements of the spacing structures 682 are beneficialto the injection molding method.

The protrusion structures 672 and the spacing structures 682 of each ofthe second inner strip-shaped structures 625 are alternately arranged asa strip shape. That is, each of the second inner strip-shaped structures625 is as a strip shape, which is formed by the protrusion structures672 and the spacing structures 682 thereof alternately arranged. Theprotrusion structures 672 and the spacing structures 682 of each of thesecond inner strip-shaped structures 626 are alternately arranged as astrip shape. That is, each of the second inner strip-shaped structures626 is as a strip shape, which is formed by the protrusion structures672 and the spacing structures 682 thereof alternately arranged.Therefore, the molding structures of the second inner strip-shapedstructures 625 and 626 could agree with the design drawing, and thedesign for the machining equipment could be easier.

A number of the second inner strip-shaped structures 625 is greater thanor equal to 80, and smaller than or equal to 320. A number of the secondinner strip-shaped structures 626 is greater than or equal to 80, andsmaller than or equal to 320. Therefore, it is favorable for balancingthe stray light attenuation and the manufacturability of the dual moldedlens element 690. In the 6th embodiment, the number of the second innerstrip-shaped structures 625 is 90, and the number of the second innerstrip-shaped structures 626 is 90.

In FIG. 6C and FIG. 6D, the dual molded lens element 690 is made by thedual-shot injection molding method, wherein the first inner strip-shapedstructures 615 and 616 as a whole are corresponding to the second innerstrip-shaped structures 625 and 626 as a whole. The protrusionstructures 672 of the light absorbing portion 620 are corresponding to aplurality of spacing structures 681 of the light transmitting portion610, and the spacing structures 682 of the light absorbing portion 620are corresponding to a plurality of protrusion structures 671 of thelight transmitting portion 610, wherein each structure of the protrusionstructures 672 and the spacing structures 681 has stepped surfaces bothin the circumferential direction and in a radial direction of thecentral axis. The second inner strip-shaped structures 625 and 626 arerespectively corresponding to the first inner strip-shaped structures615 and 616, wherein the protrusion structures 671 and the spacingstructures 681 of each of the first inner strip-shaped structures 615are arranged as a strip shape, and the protrusion structures 671 and thespacing structures 681 of each of the first inner strip-shapedstructures 616 are arranged as a strip shape. The second innerstrip-shaped structures 625 have the same geometric structures and areregularly arranged along the circumferential direction of the centralaxis of the dual molded lens element 690, and the first innerstrip-shaped structures 615 correspondingly have the same geometricstructures and are regularly arranged along the circumferentialdirection of the central axis, wherein the geometric structure of eachof the first inner strip-shaped structures 615 is different from thegeometric structure of each of the second inner strip-shaped structures625. The second inner strip-shaped structures 626 have the samegeometric structures and are regularly arranged along thecircumferential direction of the central axis of the dual molded lenselement 690, and the first inner strip-shaped structures 616correspondingly have the same geometric structures and are regularlyarranged along the circumferential direction of the central axis,wherein the geometric structure of each of the first inner strip-shapedstructures 616 is different from the geometric structure of each of thesecond inner strip-shaped structures 626. A center-to-center spacingangle in the circumferential direction of the central axis between anytwo of the second inner strip-shaped structures 625 which are adjacentto each other is θ2, and a center-to-center spacing angle in thecircumferential direction of the central axis between any two of thefirst inner strip-shaped structures 615 which are adjacent to each otheris correspondingly θ1, wherein θ1=θ2. A center-to-center spacing anglein the circumferential direction of the central axis between any two ofthe second inner strip-shaped structures 626 which are adjacent to eachother is θ2, and a center-to-center spacing angle in the circumferentialdirection of the central axis between any two of the first innerstrip-shaped structures 616 which are adjacent to each other iscorrespondingly θ1, wherein θ1=θ2.

In FIG. 6A, the optical lens assembly 600 includes lens elements 601,602, 603, the dual molded lens element 690, a lens element 604 and theimage surface 608 in order from an object side to an image side. Theoptical lens assembly 600 has a total of five lens elements (601, 602,603, 690, 604), wherein the lens elements 601, 602, 603, the dual moldedlens element 690 and the lens element 604 are disposed along an opticalaxis (i.e. the central axis of the dual molded lens element 690) in aplastic barrel 609.

In FIG. 6A and FIG. 6B, a flat surface 630 is located between the outerannular surface 619 of the peripheral section 614 and the outer annularsurface 629 of the light absorbing portion 620, wherein the flat surface630 surrounds and is orthogonal to the central axis, and the flatsurface 630 is located on the peripheral section 614. The effectiveoptical section 613 includes two aspheric surfaces, which arerespectively a region of the effective optical section 613 located onthe object-side surface 670 and a region of the effective opticalsection 613 located on the image-side surface 680 of the dual moldedlens element 690.

From another point of view, in FIG. 6B to FIG. 6D, the peripheralsection 614 includes a plurality of first inner ring-shaped structures617 and a plurality of first inner ring-shaped structures 618, whereinthe first inner ring-shaped structures 617 and 618 are coaxiallyarranged with respect to the central axis of the dual molded lenselement 690. The light absorbing portion 620 includes a plurality ofsecond inner ring-shaped structures 627 and a plurality of second innerring-shaped structures 628, wherein the second inner ring-shapedstructures 627 and 628 are coaxially arranged with respect to thecentral axis, and the second inner ring-shaped structures 627 and 628are disposed correspondingly to and connected to the first innerring-shaped structures 817 and 618.

In detail, each of the first inner ring-shaped structures 617 includesthe protrusion structures 671 and the spacing structures 681. Each ofthe first inner ring-shaped structures 618 includes the protrusionstructures 671 and the spacing structures 681. Each of the second innerring-shaped structures 627 includes the protrusion structures 672 andthe spacing structures 682. Each of the second inner ring-shapedstructures 628 includes the protrusion structures 672 and the spacingstructures 682.

Each of the protrusion structures 671 of the first inner ring-shapedstructures 617 is aligned with one of the spacing structures 681 of thefirst inner ring-shaped structures 618 which is adjacent to thereofalong the radial direction of the central axis. Each of the spacingstructures 681 of the first inner ring-shaped structures 617 is alignedwith one of the protrusion structures 671 of the first inner ring-shapedstructures 618 which is adjacent to thereof along the radial directionof the central axis. Each of the protrusion structures 672 of the secondinner ring-shaped structures 627 is aligned with one of the spacingstructures 682 of the second inner ring-shaped structures 628 which isadjacent to thereof along the radial direction of the central axis. Eachof the spacing structures 682 of the second inner ring-shaped structures627 is aligned with one of the protrusion structures 672 of the secondinner ring-shaped structures 628 which is adjacent to thereof along theradial direction of the central axis.

The protrusion structures 671 and the spacing structures 681 of thefirst inner ring-shaped structures 617 are alternately arranged as aring shape. The protrusion structures 671 and the spacing structures 681of the first inner ring-shaped structures 618 are alternately arrangedas a ring shape. The protrusion structures 672 and the spacingstructures 682 of the second inner ring-shaped structures 627 arealternately arranged as a ring shape. The protrusion structures 672 andthe spacing structures 682 of the second inner ring-shaped structures628 are alternately arranged as a ring shape.

In the 6th embodiment, in FIG. 6C and FIG. 6D, the dual molded lenselement 690 is made by the dual-shot injection molding method, whereinthe first inner ring-shaped structures 617 and 618 as a whole arecorresponding to the second inner ring-shaped structures 627 and 628 asa whole. The protrusion structures 672 of the light absorbing portion620 are corresponding to the spacing structures 681 of the lighttransmitting portion 610, and the spacing structures 682 of the lightabsorbing portion 620 are corresponding to the protrusion structures 671of the light transmitting portion 610, wherein each structure of theprotrusion structures 672 and the spacing structures 681 has steppedsurfaces both in the circumferential direction and in the radialdirection of the central axis. The second inner ring-shaped structures627 and 628 are respectively corresponding to the first innerring-shaped structures 617 and 618.

The data of the parameters θ1, θ2, w, φt, φab and φt/φab of the opticallens assembly 600 according to the 6th embodiment of the presentdisclosure are listed in the following Table 6, wherein the parametersare also shown as FIG. 6B to FIG. 6D. The definitions of theseparameters shown in Table 6 are the same as those stated in the opticallens assembly 100 of the 1st embodiment and the optical lens assembly400 of the 4th embodiment with corresponding values for the optical lensassembly 600.

TABLE 6 6th Embodiment θ1 (degrees) 4 φt (mm) 4.2 θ2 (degrees) 4 φab(mm) 3.07 w (mm) 0.16 φt/φab 1.37

7th Embodiment

FIG. 7A is a schematic view of an optical lens assembly 700 according tothe 7th embodiment of the present disclosure. In FIG. 7A, the opticallens assembly 700 includes a dual molded lens element 790, wherein thedual molded lens element 790 includes a light transmitting portion 710and a light absorbing portion 720.

FIG. 7B is a schematic view of the dual molded lens element 790according to the 7th embodiment. In FIG. 7A and FIG. 7B, the lighttransmitting portion 710 includes an effective optical section 713 and aperipheral section 714. The peripheral section 714 surrounds theeffective optical section 713, wherein an incident light passes throughthe effective optical section 713 and forms an image on an image surface708. The effective optical section 713 can include a planar surface oran aspheric surface with any curvature, wherein it would affect imagingproperties by blocking the effective optical section 713.

The light absorbing portion 720 is located on an object-side surface 770of the dual molded lens element 790, wherein the object-side surface 770is a surface of the dual molded lens element 790 facing an imaged object(not shown herein), and an image-side surface 780 is a surface of thedual molded lens element 790 facing the image surface 708. The lightabsorbing portion 720 is annular and surrounds a central axis of thedual molded lens element 790. A plastic material of the light absorbingportion 720 has the feature of absorbing visible light, and a color ofthe light absorbing portion 720 is black. A plastic material of thelight transmitting portion 710 has the feature of being transmitted byvisible light, and a color of the light transmitting portion 710 istransparent and colorless. Hence, the plastic material and the color ofthe light absorbing portion 720 are different from the plastic materialand the color of the light transmitting portion 710. The dual moldedlens element 790 is made by an injection molding method and formedintegrally.

FIG. 7C is a plane view of the light absorbing portion 720 according tothe 7th embodiment, and FIG. 7D is a plane view of the lighttransmitting portion 710 according to the 7th embodiment. In FIG. 7B toFIG. 7D, the peripheral section 714 includes a plurality of first innerring-shaped structures 717 and a plurality of first inner ring-shapedstructures 718, wherein the first inner ring-shaped structures 717 and718 are coaxially arranged with respect to the central axis of the dualmolded lens element 790. The light absorbing portion 720 includes aplurality of second inner ring-shaped structures 727 and a plurality ofsecond inner ring-shaped structures 728, wherein the second innerring-shaped structures 727 and 728 are coaxially arranged with respectto the central axis, and the second inner ring-shaped structures 727 and728 are disposed correspondingly to and connected to the first innerring-shaped structures 717 and 718.

In detail, the dual molded lens element 790 is made by a dual-shotinjection molding method.

At least one of each of the first inner ring-shaped structures 717, eachof the first inner ring-shaped structures 718, each of the second innerring-shaped structures 727 and each of the second inner ring-shapedstructures 728 can include a plurality of protrusion structures and aplurality of spacing structures. Therefore, it is favorable forincreasing the structural denseness of the first inner ring-shapedstructures 717, 718, the second inner ring-shaped structures 727 and 728being further arranged as two dimension so as to attenuate the straylight. In addition, the arrangements of the spacing structures arebeneficial to the injection molding method. In the 7th embodiment, eachof the first inner ring-shaped structures 717 includes a plurality ofprotrusion structures 771 and a plurality of spacing structures 781.Each of the first inner ring-shaped structures 718 includes theprotrusion structures 771 and the spacing structures 781. Each of thesecond inner ring-shaped structures 727 includes a plurality ofprotrusion structures 772 and a plurality of spacing structures 782.Each of the second inner ring-shaped structures 728 includes theprotrusion structures 772 and the spacing structures 782.

On the peripheral section 714, each of the protrusion structures 771 canbe aligned with one of the spacing structures 781 which is adjacent tothereof along a radial direction of the central axis. On the lightabsorbing portion 720, each of the protrusion structures 772 can bealigned with one of the spacing structures 782 which is adjacent tothereof along the radial direction of the central axis. Therefore, it isfavorable for increasing the contact area between the light absorbingportion 720 and the peripheral section 714 of the light transmittingportion 710. In the 7th embodiment, each of the protrusion structures771 of the first inner ring-shaped structures 717 is aligned with one ofthe spacing structures 781 of the first inner ring-shaped structures 718which is adjacent to thereof along the radial direction of the centralaxis. Each of the spacing structures 781 of the first inner ring-shapedstructures 717 is aligned with one of the protrusion structures 771 ofthe first inner ring-shaped structures 718 which is adjacent to thereofalong the radial direction of the central axis. Each of the protrusionstructures 772 of the second inner ring-shaped structures 727 is alignedwith one of the spacing structures 782 of the second inner ring-shapedstructures 728 which is adjacent to thereof along the radial directionof the central axis. Each of the spacing structures 782 of the secondinner ring-shaped structures 727 is aligned with one of the protrusionstructures 772 of the second inner ring-shaped structures 728 which isadjacent to thereof along the radial direction of the central axis.

The protrusion structures 771 and the spacing structures 781 can bealternately arranged as a plurality of ring shapes, and the protrusionstructures 772 and the spacing structures 782 can be alternatelyarranged as a plurality of ring shapes. Therefore, it is favorable forfurther increasing the contact area between the light absorbing portion720 and the peripheral section 714 of the light transmitting portion710. In the 7th embodiment, the protrusion structures 771 and thespacing structures 781 of the first inner ring-shaped structures 717 arealternately arranged as a ring shape. The protrusion structures 771 andthe spacing structures 781 of the first inner ring-shaped structures 718are alternately arranged as a ring shape. The protrusion structures 772and the spacing structures 782 of the second inner ring-shapedstructures 727 are alternately arranged as a ring shape. The protrusionstructures 772 and the spacing structures 782 of the second innerring-shaped structures 728 are alternately arranged as a ring shape.

In the 7th embodiment, in FIG. 7C and FIG. 7D, the dual molded lenselement 790 is made by the dual-shot injection molding method, whereinthe first inner ring-shaped structures 717 and 718 as a whole arecorresponding to the second inner ring-shaped structures 727 and 728 asa whole. The protrusion structures 772 of the light absorbing portion720 are corresponding to the spacing structures 781 of the lighttransmitting portion 710, and the spacing structures 782 of the lightabsorbing portion 720 are corresponding to the protrusion structures 771of the light transmitting portion 710, wherein each structure of theprotrusion structures 772 and the spacing structures 781 has steppedsurfaces both in a circumferential direction and in the radial directionof the central axis. The second inner ring-shaped structures 727 and 728are respectively corresponding to the first inner ring-shaped structures717 and 718.

In FIG. 7A, the optical lens assembly 700 includes lens elements 701,702, 703, the dual molded lens element 790, a lens element 704 and theimage surface 708 in order from an object side to an image side. Theoptical lens assembly 700 has a total of five lens elements (701, 702,703, 790, 704), wherein the lens elements 701, 702, 703, the dual moldedlens element 790 and the lens element 704 are disposed along an opticalaxis (i.e. the central axis of the dual molded lens element 790) in aplastic barrel 709.

In FIG. 7A and FIG. 7B, a flat surface 730 is located between an outerannular surface 719 of the peripheral section 714 and an outer annularsurface 729 of the light absorbing portion 720, wherein the flat surface730 surrounds and is orthogonal to the central axis, and the flatsurface 730 is located on the peripheral section 714. The effectiveoptical section 713 includes two aspheric surfaces, which arerespectively a region of the effective optical section 713 located onthe object-side surface 770 and a region of the effective opticalsection 713 located on the image-side surface 780 of the dual moldedlens element 790.

From another point of view, in FIG. 7B to FIG. 7D, the peripheralsection 714 includes a plurality of first inner strip-shaped structures715 and a plurality of first inner strip-shaped structures 716, whereinthe first inner strip-shaped structures 715 and 716 are regularlyarranged along the circumferential direction of the central axis of thedual molded lens element 790. The light absorbing portion 720 includes aplurality of second inner strip-shaped structures 725 and a plurality ofsecond inner strip-shaped structures 726, wherein the second innerstrip-shaped structures 725 and 726 are regularly arranged along thecircumferential direction of the central axis, and the second innerstrip-shaped structures 725 and 726 are disposed correspondingly to andconnected to the first inner strip-shaped structures 715 and 716.

In detail, each structure of the first inner strip-shaped structures 715and 716 is disposed in a direction from the central axis towards theouter annular surface 719 of the peripheral section 714. Each structureof the second inner strip-shaped structures 725 and 726 is disposed in adirection from the central axis towards the outer annular surface 729 ofthe light absorbing portion 720.

In FIG. 7B and FIG. 7C, each structure of the second inner strip-shapedstructures 725 and 726 includes the protrusion structures 772 and thespacing structures 782. Specifically, the protrusion structures 772 andthe spacing structures 782 of each of the second inner strip-shapedstructures 725 are arranged as a strip shape, and the protrusionstructures 772 and the spacing structures 782 of each of the secondinner strip-shaped structures 726 are arranged as a strip shape. Theprotrusion structures 772 and the spacing structures 782 of each of thesecond inner strip-shaped structures 725 are alternately arranged as astrip shape. That is, each of the second inner strip-shaped structures725 is as a strip shape, which is formed by the protrusion structures772 and the spacing structures 782 thereof alternately arranged. Theprotrusion structures 772 and the spacing structures 782 of each of thesecond inner strip-shaped structures 726 are alternately arranged as astrip shape. That is, each of the second inner strip-shaped structures726 is as a strip shape, which is formed by the protrusion structures772 and the spacing structures 782 thereof alternately arranged. Anumber of the second inner strip-shaped structures 725 is 45, and anumber of the second inner strip-shaped structures 726 is 45.

In FIG. 7C and FIG. 7D, the dual molded lens element 790 is made by thedual-shot injection molding method, wherein the first inner strip-shapedstructures 715 and 716 as a whole are corresponding to the second innerstrip-shaped structures 725 and 726 as a whole. Each structure of thefirst inner strip-shaped structures 715 and 716 is a strip-shapedstructure of a continuous protrusion, which is a pre-arranged strip, anda protrusion strip specifically. The protrusion structures 772 and thespacing structures 782 of each structure of the second innerstrip-shaped structures 725 and 726 are alternately arranged as a stripshape. Two sides (its reference numeral is omitted) of each of thesecond inner strip-shaped structures 725 are respectively correspondingto one of the first inner strip-shaped structures 715 and one of thefirst inner strip-shaped structures 716. Two sides (its referencenumeral is omitted) of each of the second inner strip-shaped structures726 are respectively corresponding to one of the first innerstrip-shaped structures 716 and one of the first inner strip-shapedstructures 715. The second inner strip-shaped structures 725 have thesame geometric structures and are regularly arranged along thecircumferential direction of the central axis of the dual molded lenselement 790, the second inner strip-shaped structures 726 have the samegeometric structures and are regularly arranged along thecircumferential direction of the central axis, the first innerstrip-shaped structures 715 correspondingly have the same geometricstructures and are regularly arranged along the circumferentialdirection of the central axis, and the first inner strip-shapedstructures 716 correspondingly have the same geometric structures andare regularly arranged along the circumferential direction of thecentral axis, wherein the geometric structure of each structure of thefirst inner strip-shaped structures 715 and 716 is different from thegeometric structure of each structure of the second inner strip-shapedstructures 725 and 726. A center-to-center spacing angle in thecircumferential direction of the central axis between any two of thesecond inner strip-shaped structures 725 which are adjacent to eachother is θ2, a center-to-center spacing angle in the circumferentialdirection of the central axis between any two of the second innerstrip-shaped structures 726 which are adjacent to each other is θ2, acenter-to-center spacing angle in the circumferential direction of thecentral axis between any two of the first inner strip-shaped structures715 which are adjacent to each other is correspondingly θ1, and acenter-to-center spacing angle in the circumferential direction of thecentral axis between any two of the first inner strip-shaped structures716 which are adjacent to each other is correspondingly θ1, whereinθ1=θ2.

The data of the parameters θ1, θ2, w, φt, φab and φt/φab of the opticallens assembly 700 according to the 7th embodiment of the presentdisclosure are listed in the following Table 7, wherein the parametersare also shown as FIG. 7B to FIG. 7D. The definitions of theseparameters shown in Table 7 are the same as those stated in the opticallens assembly 100 of the 1st embodiment and the optical lens assembly400 of the 4th embodiment with corresponding values for the optical lensassembly 700.

TABLE 7 7th Embodiment θ1 (degrees) 8 φt (mm) 4.2 θ2 (degrees) 8 φab(mm) 3.07 w (mm) 0.16 φt/φab 1.37

8th Embodiment

FIG. 8A is a schematic view of an optical lens assembly 800 according tothe 8th embodiment of the present disclosure. In FIG. 8A, the opticallens assembly 800 includes a dual molded lens element 890, wherein thedual molded lens element 890 includes a light transmitting portion 810and a light absorbing portion 820.

FIG. 8B is a schematic view of the dual molded lens element 890according to the 8th embodiment. In FIG. 8A and FIG. 8B, the lighttransmitting portion 810 includes an effective optical section 813 and aperipheral section 814. The peripheral section 814 surrounds theeffective optical section 813, wherein an incident light passes throughthe effective optical section 813 and forms an image on an image surface808. The effective optical section 813 can include a planar surface oran aspheric surface with any curvature, wherein it would affect imagingproperties by blocking the effective optical section 813.

The light absorbing portion 820 is located on an object-side surface 870of the dual molded lens element 890, wherein the object-side surface 870is a surface of the dual molded lens element 890 facing an imaged object(not shown herein), and an image-side surface 880 is a surface of thedual molded lens element 890 facing the image surface 808. The lightabsorbing portion 820 is annular and surrounds a central axis of thedual molded lens element 890. A plastic material of the light absorbingportion 820 has the feature of absorbing visible light, and a color ofthe light absorbing portion 820 is black. A plastic material of thelight transmitting portion 810 has the feature of being transmitted byvisible light, and a color of the light transmitting portion 810 istransparent and colorless. Hence, the plastic material and the color ofthe light absorbing portion 820 are different from the plastic materialand the color of the light transmitting portion 810. The dual moldedlens element 890 is made by an injection molding method and formedintegrally.

FIG. 8C is a plane view of the light absorbing portion 820 according tothe 8th embodiment, and FIG. 8D is a plane view of the lighttransmitting portion 810 according to the 8th embodiment. In FIG. 8B toFIG. 8D, the peripheral section 814 includes a plurality of first innerring-shaped structures 817, wherein the first inner ring-shapedstructures 817 are coaxially arranged with respect to the central axisof the dual molded lens element 890. The light absorbing portion 820includes a plurality of second inner ring-shaped structures 827, whereinthe second inner ring-shaped structures 827 are coaxially arranged withrespect to the central axis, and the second inner ring-shaped structures827 are disposed correspondingly to and connected to the first innerring-shaped structures 817.

In detail, the dual molded lens element 890 is made by a dual-shotinjection molding method. Each of the first inner ring-shaped structures817 is a ring-shaped structure of a continuous protrusion, which is apre-arranged ring. Each of the second inner ring-shaped structures 827includes a plurality of protrusion structures 872 and a plurality ofspacing structures 882. That is, the protrusion structures 872 and thespacing structures 882 of each of the second inner ring-shapedstructures 827 are alternately arranged as a ring shape. The first innerring-shaped structures 817 as a whole are corresponding to the secondinner ring-shaped structures 827 as a whole. The protrusion structures872 are respectively corresponding to a plurality of arc grooves (itsreference numeral is omitted) on the light transmitting portion 810,wherein each of the arc grooves is located between two of the firstinner ring-shaped structures 817 which are adjacent to each other. Astructure (its reference numeral is omitted) between two of the secondinner ring-shaped structures 827 which are adjacent to each other iscorresponding to one of the first inner ring-shaped structures 817.

In FIG. 8A, the optical lens assembly 800 includes lens element 801, thedual molded lens element 890, lens elements 802, 803, 804 and the imagesurface 808 in order from an object side to an image side. The opticallens assembly 800 has a total of five lens elements (801, 890, 802, 803,804), wherein the lens element 801, the dual molded lens element 890,the lens elements 802, 803 and 804 are disposed along an optical axis(i.e. the central axis of the dual molded lens element 890) in a plasticbarrel 809.

In FIG. 8A and FIG. 8B, a flat surface 830 is located between an outerannular surface 819 of the peripheral section 814 and an outer annularsurface 829 of the light absorbing portion 820, wherein the flat surface830 surrounds and is orthogonal to the central axis, and the flatsurface 830 is located on the peripheral section 814. The effectiveoptical section 813 includes two aspheric surfaces, which arerespectively a region of the effective optical section 813 located onthe object-side surface 870 and a region of the effective opticalsection 813 located on the image-side surface 880 of the dual moldedlens element 890.

A connecting structure 831 is located on the peripheral section 814 ofthe dual molded lens element 890. The connecting structure 831 includesa connecting surface 841 and a receiving surface 851, wherein theconnecting surface 841 is an annular conical surface with respect to thecentral axis, and the receiving surface 851 is orthogonal to the centralaxis and farther from the central axis than the connecting surface 841is from the central axis. The connecting structure 831 is connected tothe lens element 802, which is adjacent to the dual molded lens element890, and the connecting structure 831 is for the dual molded lenselement 890 and the lens element 802 both aligned with the central axis.Therefore, it is favorable for the dual molded lens element 890assembled in the optical lens assembly 800. In addition, the dual moldedlens element 890 is the lens element neither closest to the imagedobject, nor closest to the image surface 808, so that it is favorablefor effectively attenuating the stray light of higher strength withinthe field of view.

Furthermore, a connecting structure 832 is located on the lightabsorbing portion 820 of the dual molded lens element 890. Theconnecting structure 832 includes a connecting surface 842 and areceiving surface 852, wherein the connecting surface 842 is an annularconical surface with respect to the central axis, and the receivingsurface 852 is orthogonal to the central axis and farther from thecentral axis than the connecting surface 842 is from the central axis.The connecting structure 832 is connected to the lens element 801, whichis adjacent to the dual molded lens element 890, and the connectingstructure 832 is for the dual molded lens element 890 and the lenselement 801 both aligned with the central axis.

An angle between the connecting surface 841 and the receiving surface851 of the peripheral section 814 is α1, and an angle between theconnecting surface 842 and the receiving surface 852 of the lightabsorbing portion 820 is α2, wherein both the parameters α1 and α2conform to the definition of the parameter α in the claims and the 4thembodiment.

The data of the parameters w, α1, α2, φt, φab and φt/φab of the opticallens assembly 800 according to the 8th embodiment of the presentdisclosure are listed in the following Table 8, wherein the parametersare also shown as FIG. 8B. The definitions of these parameters shown inTable 8 are the same as those stated in the optical lens assembly 400 ofthe 4th embodiment with corresponding values for the optical lensassembly 800.

TABLE 8 8th Embodiment w (mm) 0.16 φt (mm) 2.59 α1 (degrees) 120 φab(mm) 1.69 α2 (degrees) 100 φt/φab 1.53

9th Embodiment

FIG. 9A is a schematic view of an optical lens assembly 900 according tothe 9th embodiment of the present disclosure. In FIG. 9A, the opticallens assembly 900 includes a dual molded lens element 990, wherein thedual molded lens element 990 includes a light transmitting portion 910and a light absorbing portion 920.

FIG. 9B is a schematic view of the dual molded lens element 990according to the 9th embodiment. In FIG. 9A and FIG. 9B, the lighttransmitting portion 910 includes an effective optical section 913 and aperipheral section 914. The peripheral section 914 surrounds theeffective optical section 913, wherein an incident light passes throughthe effective optical section 913 and forms an image on an image surface908. The effective optical section 913 can include a planar surface oran aspheric surface with any curvature, wherein it would affect imagingproperties by blocking the effective optical section 913.

The light absorbing portion 920 is located on an object-side surface 970of the dual molded lens element 990, wherein the object-side surface 970is a surface of the dual molded lens element 990 facing an imaged object(not shown herein), and an image-side surface 980 is a surface of thedual molded lens element 990 facing the image surface 908. The lightabsorbing portion 920 is annular and surrounds a central axis of thedual molded lens element 990. A plastic material of the light absorbingportion 920 has the feature of absorbing visible light, and a color ofthe light absorbing portion 920 is black. A plastic material of thelight transmitting portion 910 has the feature of being transmitted byvisible light, and a color of the light transmitting portion 910 istransparent and colorless. Hence, the plastic material and the color ofthe light absorbing portion 920 are different from the plastic materialand the color of the light transmitting portion 910. The dual moldedlens element 990 is made by an injection molding method and formedintegrally.

FIG. 9C is a plane view of the light absorbing portion 920 according tothe 9th embodiment, and FIG. 9D is a plane view of the lighttransmitting portion 910 according to the 9th embodiment. In FIG. 9B toFIG. 9D, the peripheral section 914 includes a plurality of first innerstrip-shaped structures 915, wherein the first inner strip-shapedstructures 915 are regularly arranged along a circumferential directionof the central axis of the dual molded lens element 990. The lightabsorbing portion 920 includes a plurality of second inner strip-shapedstructures 925, wherein the second inner strip-shaped structures 925 areregularly arranged along the circumferential direction of the centralaxis, and the second inner strip-shaped structures 925 are disposedcorrespondingly to and connected to the first inner strip-shapedstructures 915.

In detail, the dual molded lens element 990 is made by a dual-shotinjection molding method. The peripheral section 914 of the lighttransmitting portion 910 further includes an outer annular surface 919.Each of the first inner strip-shaped structures 915 is disposed in adirection from the central axis towards the outer annular surface 919 ofthe peripheral section 914. The light absorbing portion 920 furtherincludes an outer annular surface 929. Each of the second innerstrip-shaped structures 925 is disposed in a direction from the centralaxis towards the outer annular surface 929 of the light absorbingportion 920.

In FIG. 9B and FIG. 9C, each of the first inner strip-shaped structures915 is a strip-shaped structure of a continuous protrusion, which is apre-arranged strip, and a protrusion strip specifically. Each of thesecond inner strip-shaped structures 925 includes a plurality ofprotrusion structures 972 and a plurality of spacing structures 982.Specifically, the protrusion structures 972 and the spacing structures982 of each of the second inner strip-shaped structures 925 are arrangedas a strip shape. The protrusion structures 972 and the spacingstructures 982 of each of the second inner strip-shaped structures 925are alternately arranged as a strip shape. That is, each of the secondinner strip-shaped structures 925 is as a strip shape, which is formedby the protrusion structures 972 and the spacing structures 982 thereofalternately arranged. Furthermore, a number of the second innerstrip-shaped structures 925 is 24.

In FIG. 9C and FIG. 9D, the dual molded lens element 990 is made by thedual-shot injection molding method, wherein the first inner strip-shapedstructures 915 as a whole are corresponding to the second innerstrip-shaped structures 925 as a whole. Each of the second innerstrip-shaped structures 925 is corresponding to one structure (itsreference numeral is omitted) between two of the first innerstrip-shaped structures 915 which are adjacent to each other, and onestructure (its reference numeral is omitted) between two of the secondinner strip-shaped structures 925 which are adjacent to each other iscorresponding to one of the first inner strip-shaped structures 915. Thefirst inner strip-shaped structures 915 have the same geometricstructures and are regularly arranged along the circumferentialdirection of the central axis of the dual molded lens element 990, andthe second inner strip-shaped structures 925 correspondingly have thesame geometric structures and are regularly arranged along thecircumferential direction of the central axis, wherein the geometricstructure of each of the first inner strip-shaped structures 915 isdifferent from the geometric structure of each of the second innerstrip-shaped structures 925. A center-to-center spacing angle in thecircumferential direction of the central axis between any two of thesecond inner strip-shaped structures 925 which are adjacent to eachother is θ2, and a center-to-center spacing angle in the circumferentialdirection of the central axis between any two of the first innerstrip-shaped structures 915 which are adjacent to each other iscorrespondingly θ1, wherein θ1=θ2.

In FIG. 9A, the optical lens assembly 900 includes a lens element 901,the dual molded lens element 990, lens elements 902, 903, 904 and theimage surface 908 in order from an object side to an image side. Theoptical lens assembly 900 has a total of five lens elements (901, 990,902, 903, 904), wherein the lens element 901, the dual molded lenselement 990, the lens elements 902, 903 and 904 are disposed along anoptical axis (i.e. the central axis of the dual molded lens element 990)in a plastic barrel 909.

In FIG. 9A and FIG. 9B, a flat surface 930 is located between the outerannular surface 919 of the peripheral section 914 and the outer annularsurface 929 of the light absorbing portion 920, wherein the flat surface930 surrounds and is orthogonal to the central axis, and the flatsurface 930 is located on the peripheral section 914. The effectiveoptical section 913 includes two aspheric surfaces, which arerespectively a region of the effective optical section 913 located onthe object-side surface 970 and a region of the effective opticalsection 913 located on the image-side surface 980 of the dual moldedlens element 990.

A connecting structure 931 is located on the peripheral section 914 ofthe dual molded lens element 990. The connecting structure 931 includesa connecting surface 941 and a receiving surface 951, wherein theconnecting surface 941 is an annular conical surface with respect to thecentral axis, and the receiving surface 951 is orthogonal to the centralaxis and farther from the central axis than the connecting surface 941is from the central axis. The connecting structure 931 is connected tothe lens element 902, which is adjacent to the dual molded lens element990, and the connecting structure 931 is for the dual molded lenselement 990 and the lens element 902 both aligned with the central axis.Therefore, it is favorable for the dual molded lens element 990assembled in the optical lens assembly 900. In addition, the dual moldedlens element 990 is the lens element neither closest to the imagedobject, nor closest to the image surface 908, so that it is favorablefor effectively attenuating the stray light of higher strength withinthe field of view.

Furthermore, a connecting structure 932 is located on the lightabsorbing portion 920 of the dual molded lens element 990. Theconnecting structure 932 includes a connecting surface 942 and areceiving surface 952, wherein the connecting surface 942 is an annularconical surface with respect to the central axis, and the receivingsurface 952 is orthogonal to the central axis and farther from thecentral axis than the connecting surface 942 is from the central axis.The connecting structure 932 is connected to the lens element 901, whichis adjacent to the dual molded lens element 990, and the connectingstructure 932 is for the dual molded lens element 990 and the lenselement 901 both aligned with the central axis.

An angle between the connecting surface 941 and the receiving surface951 of the peripheral section 914 is σ1, and an angle between theconnecting surface 942 and the receiving surface 952 of the lightabsorbing portion 920 is α2, wherein both the parameters α1 and α2conform to the definition of the parameter α in the claims and the 3rdembodiment.

From another point of view, in FIG. 9B to FIG. 9D, the peripheralsection 914 includes a plurality of first inner ring-shaped structures917, wherein the first inner ring-shaped structures 917 are coaxiallyarranged with respect to the central axis of the dual molded lenselement 990. The light absorbing portion 920 includes a plurality ofsecond inner ring-shaped structures 927, wherein the second innerring-shaped structures 927 are coaxially arranged with respect to thecentral axis, and the second inner ring-shaped structures 927 aredisposed correspondingly to and connected to the first inner ring-shapedstructures 917.

In detail, the dual molded lens element 990 is made by the dual-shotinjection molding method. Each of the first inner ring-shaped structures917 is a ring-shaped structure of a continuous protrusion, which is apre-arranged ring. Each of the second inner ring-shaped structures 927includes a plurality of protrusion structures 972 and a plurality ofspacing structures 982. That is, the protrusion structures 972 and thespacing structures 982 of each of the second inner ring-shapedstructures 927 are alternately arranged as a ring shape. The first innerring-shaped structures 917 as a whole are corresponding to the secondinner ring-shaped structures 927 as a whole. The protrusion structures972 are respectively corresponding to a plurality of arc grooves (itsreference numeral is omitted) on the light transmitting portion 910,wherein each of the arc grooves is located between two of the firstinner ring-shaped structures 917 which are adjacent to each other. Astructure (its reference numeral is omitted) between two of the secondinner ring-shaped structures 927 which are adjacent to each other iscorresponding to one of the first inner ring-shaped structures 917.

The data of the parameters θ1, θ2, w, α1, α2, φt, φab and φt/φab of theoptical lens assembly 900 according to the 9th embodiment of the presentdisclosure are listed in the following Table 9, wherein the parametersare also shown as FIG. 9B to FIG. 9D. The definitions of theseparameters shown in Table 9 are the same as those stated in the opticallens assembly 100 of the 1st embodiment and the optical lens assembly400 of the 4th embodiment with corresponding values for the optical lensassembly 900.

TABLE 9 9th Embodiment θ1 (degrees) 15 α2 (degrees) 100 θ2 (degrees) 15φt (mm) 2.59 w (mm) 0.16 φab (mm) 1.69 α1 (degrees) 120 φt/φab 1.53

10th Embodiment

FIG. 10A shows a schematic view of an electronic device 10 according tothe 10th embodiment of the present disclosure, FIG. 10B shows anotherschematic view of the electronic device 10 according to the 10thembodiment, and particularly, FIG. 10A and FIG. 10B are schematic viewsrelated to a camera of the electronic device 10. In FIG. 10A and FIG.10B, the electronic device 10 of the 10th embodiment is a smart phone,wherein the electronic device 10 includes a camera module 11. The cameramodule 11 includes the optical lens assembly 12 according to the presentdisclosure and an image sensor 13, wherein the image sensor 13 isdisposed on an image surface of the optical lens assembly 12. Therefore,a better image quality can be achieved, and hence the high-end imagingrequirements of modern electronic devices can be satisfied.

Furthermore, the user activates the capturing mode via a user interface19 of the electronic device 10, wherein the user interface 19 of the10th embodiment can be a touch screen 19 a, a button 19 b and etc. Atthis moment, the imaging light is converged on the image sensor 13 ofthe optical lens assembly 12, and the electronic signal associated withimage is output to an image signal processor (ISP) 18.

FIG. 10C shows a block diagram of the electronic device 10 according tothe 10th embodiment, and in particular, the block diagram is related tothe camera of the electronic device 10. In FIG. 10A to FIG. 10C, thecamera module 11 can further include an autofocus assembly 14 and anoptical anti-shake mechanism 15 based on the camera specification of theelectronic device 10. Moreover, the electronic device 10 can furtherinclude at least one auxiliary optical component 17 and at least onesensing component 16. The auxiliary optical component 17 can be a flashmodule for compensating for the color temperature, an infrared distancemeasurement component, a laser focus module and etc. The sensingcomponent 16 can have functions for sensing physical momentum andkinetic energy, and thereby can be an accelerator, a gyroscope, and ahall effect element, to sense shaking or jitters applied by hands of theuser or external environments. Accordingly, the functions of theautofocus assembly 14 and the optical anti-shake mechanism 15 of thecamera module 11 can be aided and enhanced to achieve the superior imagequality. Furthermore, the electronic device 10 according to the presentdisclosure can have a capturing function with multiple modes, such astaking optimized selfies, high dynamic range (HDR) under a low lightsource, 4K resolution recording, etc. Additionally, the user canvisually see the captured image of the camera through the touch screen19 a and manually operate the view finding range on the touch screen 19a to achieve the auto focus function of what you see is what you get.

Furthermore, in FIG. 10B, the camera module 11, the sensing component 16and the auxiliary optical component 17 can be disposed on a flexibleprinted circuit board (FPC) 77 and electrically connected with theassociated components, such as the imaging signal processor 18, via aconnector 78 to perform a capturing process. Since the currentelectronic devices, such as smart phones, have a tendency of beingcompact, the way of firstly disposing the camera module and relatedcomponents on the flexible printed circuit board and secondlyintegrating the circuit thereof into the main board of the electronicdevice via the connector can satisfy the requirements of the mechanicaldesign and the circuit layout of the limited space inside the electronicdevice, and obtain more margins. The autofocus function of the cameramodule can also be controlled more flexibly via the touch screen of theelectronic device. In the 10th embodiment, the electronic device 10includes a plurality of sensing components 16 and a plurality ofauxiliary optical components 17. The sensing components 16 and theauxiliary optical components 17 are disposed on the flexible printedcircuit board 77 and at least one other flexible printed circuit board(its reference numeral is omitted) and electrically connected with theassociated components, such as the image signal processor 18, viacorresponding connectors to perform the capturing process. In otherembodiments (not shown herein), the sensing components and the auxiliaryoptical components can also be disposed on the main board of theelectronic device or carrier boards of other types according torequirements of the mechanical design and the circuit layout.

In addition, the electronic device 10 can further include but not belimited to a wireless communication unit, a control unit, a storageunit, a random access memory, a read-only memory, or a combinationthereof.

11th Embodiment

FIG. 11 shows an electronic device 20 according to the 11th embodimentof the present disclosure. The electronic device 20 of the 11thembodiment is a tablet personal computer, wherein the electronic device20 includes a camera module 21. The camera modules 21 includes theoptical lens assembly (not shown herein) according to the presentdisclosure and an image sensor (not shown herein), wherein the imagesensor is disposed on an image surface of the optical lens assembly.

12th Embodiment

FIG. 12 shows an electronic device 30 according to the 12th embodimentof the present disclosure. The electronic device 30 of the 12thembodiment is a wearable device, wherein the electronic device 30includes a camera module 31. The camera modules 31 includes the opticallens assembly (not shown herein) according to the present disclosure andan image sensor (not shown herein), wherein the image sensor is disposedon an image surface of the optical lens assembly.

Although the present disclosure has been described in considerabledetail with reference to the embodiments thereof, other embodiments arepossible. Therefore, the spirit and scope of the appended claims shouldnot be limited to the description of the embodiments contained herein.It will be apparent to those skilled in the art that variousmodifications and variations can be made to the structure of the presentdisclosure without departing from the scope or spirit of the presentdisclosure. In view of the foregoing, it is intended to that the presentdisclosure cover modifications and variations of this disclosureprovided they fall within the scope of the following claims.

What is claimed is:
 1. An optical lens assembly comprising at least onelens element, which is a dual molded lens element, and the dual moldedlens element comprising: a light transmitting portion comprising: aneffective optical section; and a peripheral section surrounding theeffective optical section and comprising a plurality of first innerstrip-shaped structures, wherein the first inner strip-shaped structuresare regularly arranged along a circumferential direction of a centralaxis of the dual molded lens element; and a light absorbing portionlocated on at least one of an object-side surface and an image-sidesurface of the dual molded lens element, wherein the light absorbingportion is annular and surrounds the central axis, a plastic materialand a color of the light absorbing portion are different from a plasticmaterial and a color of the light transmitting portion, the dual moldedlens element is made by an injection molding method and formedintegrally, the light absorbing portion comprises a plurality of secondinner strip-shaped structures, the second inner strip-shaped structuresare regularly arranged along the circumferential direction of thecentral axis, and the second inner strip-shaped structures are disposedcorrespondingly to and connected to the first inner strip-shapedstructures; wherein each of the second inner strip-shaped structures isa wedge strip.
 2. The optical lens assembly of claim 1, wherein the dualmolded lens element is made by a dual-shot injection molding method. 3.The optical lens assembly of claim 2, wherein each of the peripheralsection of the light transmitting portion and the light absorbingportion comprises an outer annular surface, each of the first innerstrip-shaped structures is disposed in a direction from the central axistowards the outer annular surface of the peripheral section, and each ofthe second inner strip-shaped structures is disposed in a direction fromthe central axis towards the outer annular surface of the lightabsorbing portion.
 4. The optical lens assembly of claim 3, wherein aflat surface is located between the outer annular surface of theperipheral section and the outer annular surface of the light absorbingportion, the flat surface surrounds and is orthogonal to the centralaxis, and the flat surface is located on the peripheral section or thelight absorbing portion.
 5. The optical lens assembly of claim 4,wherein a width of the flat surface is w, and the following condition issatisfied:0.03 mm<w<0.52 mm.
 6. The optical lens assembly of claim 2, wherein theeffective optical section comprises at least one aspheric surface. 7.The optical lens assembly of claim 2, wherein a number of the lenselement of the optical lens assembly is at least two, at least one ofthe lens elements is the dual molded lens element, a connectingstructure is located on at least one of the peripheral section and thelight absorbing portion of the dual molded lens element, the connectingstructure comprises a connecting surface and a receiving surface, theconnecting surface is an annular conical surface, the receiving surfaceis orthogonal to the central axis, the connecting structure is connectedto another lens element which is adjacent to the dual molded lenselement, and the connecting structure is for the dual molded lenselement and the another lens element both aligned with the central axis.8. The optical lens assembly of claim 7, wherein an angle between theconnecting surface and the receiving surface is a, and the followingcondition is satisfied:95 degrees<α<135 degrees.
 9. The optical lens assembly of claim 7,wherein the connecting structure is located on the light absorbingportion.
 10. The optical lens assembly of claim 7, wherein theconnecting structure is located on the peripheral section.
 11. Anelectronic device comprising a camera module, and the camera modulecomprising: the optical lens assembly of claim 1; and an image sensordisposed on an image surface of the optical lens assembly.
 12. Anoptical lens assembly comprising at least two lens elements, at leastone of the lens elements being a dual molded lens element, and the dualmolded lens element comprising: a light transmitting portion comprising:an effective optical section; and a peripheral section surrounding theeffective optical section and comprising a plurality of first innerstrip-shaped structures, wherein the first inner strip-shaped structuresare regularly arranged along a circumferential direction of a centralaxis of the dual molded lens element; and a light absorbing portionlocated on at least one of an object-side surface and an image-sidesurface of the dual molded lens element, wherein the light absorbingportion is annular and surrounds the central axis, a plastic materialand a color of the light absorbing portion are different from a plasticmaterial and a color of the light transmitting portion, the dual moldedlens element is made by an injection molding method and formedintegrally, the light absorbing portion comprises a plurality of secondinner strip-shaped structures, the second inner strip-shaped structuresare regularly arranged along the circumferential direction of thecentral axis, and the second inner strip-shaped structures are disposedcorrespondingly to and connected to the first inner strip-shapedstructures; wherein a connecting structure is located on at least one ofthe peripheral section and the light absorbing portion of the dualmolded lens element, the connecting structure comprises a connectingsurface and a receiving surface, the connecting surface is an annularconical surface, the receiving surface is orthogonal to the centralaxis, the connecting structure is connected to another lens elementwhich is adjacent to the dual molded lens element, and the connectingstructure is for the dual molded lens element and the another lenselement both aligned with the central axis.
 13. The optical lensassembly of claim 12, wherein the dual molded lens element is made by adual-shot injection molding method.
 14. The optical lens assembly ofclaim 13, wherein an angle between the connecting surface and thereceiving surface is a, and the following condition is satisfied:95 degrees<α<135 degrees.
 15. The optical lens assembly of claim 14,wherein the connecting structure is located on the light absorbingportion.
 16. The optical lens assembly of claim 14, wherein theconnecting structure is located on the peripheral section.
 17. Anelectronic device comprising a camera module, and the camera modulecomprising: the optical lens assembly of claim 12; and an image sensordisposed on an image surface of the optical lens assembly.